Stream distribution system

Abstract

A stream distribution system comprises a stream distribution server, a plurality of terminal devices each having a information reproduction function, and a local area network for connecting both of the stream distribution server and the terminal devices, in which the stream distribution server comprises reception means for receiving a stream data of a digital form transmitted through a broadcasting network or a communication network, selection means for selecting a predetermined unit of information from the stream data received by the reception means based on a distribution condition set by the terminal device which has an information reproduction function, file I / O means for controlling a file device under management of the stream distribution server and for outputting information selected by the selection means to the file device, and transmission means for transmitting information selected by the selection means to the terminal device after executing a predetermined processing according to a limitation of a preset data transmission band.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to an information delivery system for delivering digital information transmitted through a broadcasting network or a communication network to a plurality of terminal devices, especially, to a stream distribution system which handles stream data.[0002]In recent years, due to the spread of the digital broadcasting network and the communication network (including a computer network) which includes digital satellite broadcasting and CATV, etc., a so-called information delivery system is proposed to provide various information, that is, multimedia information to many and unspecified homes (hereafter, called a user). Here, multimedia information means digital information on the video, the static image, and the voice, etc. In this digital information, information, which especially includes a video, a voice, a static image, and character information, etc., and requires a real time characteristic, is called stream data. This stre...

AI Technical Summary

Benefits of technology

[0014]As another viewpoint of the present invention, the system has the file device, and the function to store information not selected by the user in received stream data into the file device (Corresponds to the image recording processing) is achieved. As a result, continuously attending the stream data on the program which receives to the period simultaneously and is recorded after the attention of the stream data on the program with high attention priority becomes possible.

[0015]According to the present invention, in the information delivery system which can receive the plural kinds of digital stream data, and distribute by selecting information with high priority of the request of the user, the selected information can be distributed to the terminal device by an appropriate sending band by changing the band distribution within the range of the transmission band to which the system is limited according to the state. If such a present invention is applied to the system which can attend stream data on plural programs etc. from especially plural channels at the same time, the user can attend information on the demand from various stream data in real time, and continuous and appropriate band distribution without requiring a complex procedure by which the band distribution of each channel is operated can be achieved.

Problems solved by technology

However, the picture quality at attending the stream relatively becomes low when the band is narrow.

To attend the stream which the user demands by the high picture quality, it is necessary to reset the band of the corresponding stream, but the operation procedure is complex.

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